1.usb plug-and-play

2.no driver required

3.system: windows98/2000/ME/XP/    Linux &  mac OS

4.Control voltage :4.5v

5.battery: 3*button cells

6. wavelength :650nm

7.max output : <1mw or <5mw

main function

1.laserpointer  function 

2.page up function

3.down function

4.buil-in flsah memory optional (128-4GB)